> 1). You want just that thread, filter: -* +*t=56686*
> where to put this filter? 
> set option -> scan rules

> 2). You want to reject everything in that thread but
> not the non-print
> verion: -* +*56686* -*showthread* 
> where to put this?options -> scan rules

> 3). You want the thumbnail images (from all sites)
> so allow them also:
> +mime:image/*
> <<---- put this in MIME types>
> associations
SCAN RULES

> 4). The links all have Don't Follow, so you  must
> disable robots.txt rules: 
> options -> spider -> spider no robots. txt rules? 
yep